Sunday, 27 December 2020

Though we told that the astrological sign for the planet Jupiter is supposed to symbolise his thunderbolt or eagle, I’ve always thought it was a stylised number four for the fourth heavenly body in the firmament and just today learned that—unconnectedly—that in the subtractive notation for Roman numerals IV (four) is also an abbreviation for IVPITTER. To avoid blasphemy in inscriptions, it is postulated that the convention of additive notation (IIII) is used instead and preserved on most modern clock and watch faces and dedication, though by no means is this universal. The value 499, for instance, occurs as either ID, XDIX, VDIV, LDVLIV or CDXCIX and sometimes the Latin numerological terms—99 as undecentum—that is, one from a hundred or IC, set the standard.